# Author: East

import getpass

_username = 'alex'
_password = '123'

username = input('username:')
# password = getpass.getpass('password:')     # pycharm中不好使
password = input('password:')

if username == _username and _password == password:
    print('welcome user {name} login...'.format(name = username))
else:
    print('Invaild username and password')